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Add sthread_create_with_priority - missing functionality from desmume

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rthreads implementation
This commit is contained in:
twinaphex 2018-10-09 03:43:34 +02:00
parent dc36691f2c
commit 521b978d31
2 changed files with 68 additions and 13 deletions
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17
libretro-common/include/rthreads/rthreads.h
View File

@ -52,6 +52,23 @@ typedef unsigned sthread_tls_t;
*/
sthread_t *sthread_create(void (*thread_func)(void*), void *userdata);
/**
* sthread_create_with_priority:
* @start_routine : thread entry callback function
* @userdata : pointer to userdata that will be made
* available in thread entry callback function
* @thread_priority : thread priority hint value from [1-100]
*
* Create a new thread. It is possible for the caller to give a hint
* for the thread's priority from [1-100]. Any passed in @thread_priority
* values that are outside of this range will cause sthread_create() to
* create a new thread using the operating system's default thread
* priority.
*
* Returns: pointer to new thread if successful, otherwise NULL.
*/
sthread_t *sthread_create_with_priority(void (*thread_func)(void*), void *userdata, int thread_priority);
/**
* sthread_detach:
* @thread : pointer to thread object

64
libretro-common/rthreads/rthreads.c
View File

@ -161,7 +161,31 @@ static void *thread_wrap(void *data_)
*/
sthread_t *sthread_create(void (*thread_func)(void*), void *userdata)
{
return sthread_create_with_priority(thread_func, userdata, 0);
}
/**
* sthread_create_with_priority:
* @start_routine : thread entry callback function
* @userdata : pointer to userdata that will be made
* available in thread entry callback function
* @thread_priority : thread priority hint value from [1-100]
*
* Create a new thread. It is possible for the caller to give a hint
* for the thread's priority from [1-100]. Any passed in @thread_priority
* values that are outside of this range will cause sthread_create() to
* create a new thread using the operating system's default thread
* priority.
*
* Returns: pointer to new thread if successful, otherwise NULL.
*/
sthread_t *sthread_create_with_priority(void (*thread_func)(void*), void *userdata, int thread_priority)
{
#ifndef USE_WIN32_THREADS
pthread_attr_t thread_attr;
#endif
bool thread_created = false;
bool thread_attr_needed = false;
struct thread_data *data = NULL;
sthread_t *thread = (sthread_t*)calloc(1, sizeof(*thread));
@ -172,27 +196,41 @@ sthread_t *sthread_create(void (*thread_func)(void*), void *userdata)
if (!data)
goto error;
data->func = thread_func;
data->userdata = userdata;
data->func = thread_func;
data->userdata = userdata;
#ifdef USE_WIN32_THREADS
thread->thread = CreateThread(NULL, 0, thread_wrap, data, 0, &thread->id);
thread_created = !!thread->thread;
thread->thread = CreateThread(NULL, 0, thread_wrap, data, 0, &thread->id);
thread_created = !!thread->thread;
#else
#if defined(VITA)
pthread_attr_t thread_attr;
pthread_attr_init(&thread_attr);
if ( (thread_priority >= 1) && (thread_priority <= 100) )
{
struct sched_param sp;
memset(&sp, 0, sizeof(struct sched_param));
sp.sched_priority = thread_priority;
pthread_attr_setschedpolicy(&thread_attr, SCHED_RR);
pthread_attr_setschedparam(&thread_attr, &sp);
thread_attr_needed = true;
}
#if defined(VITA)
pthread_attr_setstacksize(&thread_attr , 0x10000 );
thread_created = pthread_create(&thread->id, &thread_attr, thread_wrap, data) == 0;
#else
thread_created = pthread_create(&thread->id, NULL, thread_wrap, data) == 0;
#endif
thread_attr_needed = true;
#endif
if (!thread_created)
goto error;
if (thread_attr_needed)
thread_created = pthread_create(&thread->id, &thread_attr, thread_wrap, data) == 0;
else
thread_created = pthread_create(&thread->id, NULL, thread_wrap, data) == 0;
return thread;
pthread_attr_destroy(&thread_attr);
#endif
if (thread_created)
return thread;
error:
if (data)